CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands	Total	Common Stock at Par Value [Member]	Capital in Excess of Par Value [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2010	$ 3,251,195	$ 125,337	$ 1,063,461	$ (318,494)	$ 2,174,147	$ 206,744	$ 0
Consolidated net income (loss)	599,316	0	0	0	598,810	0	506
Foreign currency translation adjustment	(49,384)	0	0	0	0	(49,364)	(20)
Unrealized gain (loss) on investment securities, net	(11,886)	0	0	0	0	(11,886)	0
Unrealized gain (loss) on interest rate swaps designated as cash flow hedges, net	(1,855)	0	0	0	0	(1,855)	0
Employee benefit plan items, net	(14,482)	0	0	0	0	14,482	0
Amortization of stock-based compensation	39,225	0	39,225	0	0	0	0
Shares issued for stock-based compensation awards	46,665	45	(33,959)	80,579	0	0	0
Tax benefits related to stock-based compensation awards	7,548	0	7,548	0	0	0	0
Repurchases of common stock	(197,044)	0	0	(197,044)	0	0	0
Acquisition of noncontrolling interests	5,962	0	0	0	0	0	5,962
Balance at Dec. 31, 2011	3,675,260	125,382	1,076,275	(434,959)	2,772,957	129,157	6,448
Consolidated net income (loss)	506,717	0	0	0	506,332	0	385
Foreign currency translation adjustment	23,889	0	0	0	0	24,082	(193)
Unrealized gain (loss) on investment securities, net	3,679	0	0	0	0	3,679	0
Unrealized gain (loss) on interest rate swaps designated as cash flow hedges, net	(4,805)	0	0	0	0	(4,805)	0
Employee benefit plan items, net	(6,976)	0	0	0	0	6,976	0
Amortization of stock-based compensation	34,546	0	34,546	0	0	0	0
Shares issued for stock-based compensation awards	13,372	42	(29,632)	42,962	0	0	0
Tax benefits related to stock-based compensation awards	5,076	0	5,076	0	0	0	0
Repurchases of common stock	(260,870)	0	0	(260,870)	0	0	0
Purchase of subsidiary shares from noncontrolling interest	(2,526)	0	(26)	0	0	0	(2,500)
Balance at Dec. 31, 2012	3,987,362	125,424	1,086,239	(652,867)	3,279,289	145,137	4,140
Consolidated net income (loss)	399,876	0	0	0	399,420	0	456
Foreign currency translation adjustment	65,793	0	0	0	0	65,793	0
Unrealized gain (loss) on investment securities, net	1,027	0	0	0	0	1,027	0
Unrealized gain (loss) on interest rate swaps designated as cash flow hedges, net	2,075	0	0	0	0	2,075	0
Employee benefit plan items, net	11,520	0	0	0	0	(11,520)	0
Amortization of stock-based compensation	36,923	0	36,923	0	0	0	0
Shares issued for stock-based compensation awards	36,014	0	(59,118)	95,132	0	0	0
Tax benefits related to stock-based compensation awards	7,031	0	7,031	0	0	0	0
Repurchases of common stock	(362,793)	0	0	(362,793)	0	0	0
Balance at Dec. 31, 2013	$ 4,184,828	$ 125,424	$ 1,071,075	$ (920,528)	$ 3,678,709	$ 225,552	$ 4,596